LOCTITE® SI 5091: Versatile Silicone Adhesive for Elastic Bonding, Coating & Sealing
LOCTITE® SI 5091 is a transparent, dual-cure (UV light/moisture) silicone adhesive that delivers superior performance for various applications in automotive, electronics, military, and industrial sectors.
Key Features:
- Dual-Cure Mechanism: Offers flexibility for curing with UV light or moisture exposure, adapting to diverse production processes.
- Highly Flexible Bond: Creates a soft elastomer ideal for applications requiring flexibility and shock absorption.
- Broad Adhesion: Bonds well to various materials, including glass, metals, ceramics, and some plastics.
- Wide Service Temperature Range: Performs well in extreme temperatures, from -76°F to 356°F (-60°C to 180°C).
- Fast Curing: Achieves tack-free and fixture time within 30 seconds, streamlining production.
- Transparent Finish: Provides a clear aesthetic for applications where appearance matters.
Applications:
- Potting, coating, and sealing of electronic components, military equipment, and industrial parts.
- Elastic bonding, sealing, and leak-proofing applications on glass, metals, ceramics, and some plastics.
| Technology | Silicone |
| Chemical Type | Acetoxy silicone |
| Appearance (uncured) | Translucent liquid |
| Components | One component – requires no mixing |
| Cure | Ultraviolet (UV) light |
| Secondary Cure | Moisture for shadowed areas |
| Application | Potting, Coating or Sealing |
| Self-leveling | Uniform cavity fill |
| Flexibility | Highly flexible. Enhances load bearing & shock absorbing characteristics of the bond area. |
| Strength | Medium |
